I'm looking for a new MUD to play. This one sounds promising, but the Twitter account has posted in almost a year. Is it still pretty active?

Also, is there a good place to find documentation on all of like, the races, classes, skills/spells, etc? I'm sure there is in the in-game help files, but I like browsing that on the web and getting familiar with it first.

Yes the game is active. Most of major action happens during weekends. If your playing from USA your more likely to find end-game action during week Days then if your playing from europe. But alot of questing, exp-farming, minor zoning (instances) happens every day. The pbase is 95% helpful so don't be afraid to ask questions. Most of the information your looking for can be found in-game.